On the other side of the Hovedbanegård from the bright
lights and action of family entertainment in Tivoli, are the darker
streets and alleys of Vesterbro, where you find another kind of
action, although NOT family entertainment.
Go down Istegade if you want to find the porno shops, the
Eastern & Asian grill bars, the hookers, the heroin, and the
heaviest bars in town. It's not a big area, but it's there.
Kbh has crime and prostitution and drug addicts just like every big
city, and most of this goes on in that area, but Denmark is a rich
little country, and people really can't get as desparate as in many
other countries. The worst part of København isn't that bad: not
especially dangerous, lots of people live there because they like the
mileau, which is relaxed and raunchy. Of course, some people don't
like it at all. Junkies stealing their stuff and all that, occasional
murders...but hey, only once in a while--it's not like NYC or LA.